diff --git a/pyproject.toml b/pyproject.toml
index d8b294c..ba72114 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,12 +2,17 @@
 # Field layout follows https://docs.comfy.org/registry/specifications
 # (and the kijai/ComfyUI-Hunyuan3DWrapper precedent).
 
+[build-system]
+requires = ["setuptools>=77"]
+build-backend = "setuptools.build_meta"
+
 [project]
 name = "comfyui-hicache"
 description = "Training-free Hunyuan3D shape-generation acceleration: skip DiT steps and forecast the flow-matching velocity instead (HiCache Hermite / HiCache++ DMD, via hicache-pp). Pairs with kijai/ComfyUI-Hunyuan3DWrapper."
 version = "0.2.3"
 keywords = ["comfyui", "diffusion-acceleration", "caching", "training-free", "hunyuan3d", "hicache"]
-license = { file = "LICENSE" }
+license = "MIT"
+license-files = ["LICENSE"]
 requires-python = ">=3.9"
 dependencies = ["hicache-pp>=1.1.0"]
 classifiers = ["Development Status :: 5 - Production/Stable"]